Push-button switch.



man@ 111157,31, I"1917.,

I VAN? lla @aww-V I'n'aER/c j," Gares 5' mummy WMI/tmc? 4 FREDERIC n.engins, oF HARTFORD, ooNNEcTIoU'r, Assronon To mii-n Annow nnc'rmc fcoMPANm,onnnnrronng CONNECTICUT, A conronn'rion on oonnncmicum.

PUSHBUTTON SWITGH.

Specification of Letters ilnterfit.

Zo all 'whom it may conce-rn:

Be 1t known that l, Fmzonnc- 1P. Gares,

a citizen of the United States of Ameriozu' andresidlng a-t H art/ford,1n the countyv ot AI-Iartord and Stateof Connectielglt, have invented aoertain'new and useful Improve` nient in Pus'luButton Switches, of whichthe foiowing is a specication.

i My invention relates to push lbutton switches-and particularly toswitches of the quick make and quioi: 4break type? the object of myinvention heingto provide a cmistruo tion which is eiiicient in action.and eeonoini- @al to manufacture.

In the accompanying drawil'igs, Figurealis a plan, partially inscction,of apush button switch in 'which my invention is embodied in one forint,

Fig. @bis a. section therethrough on the line 22. 'Fig'. l;

Fig. 3 is a detaehed perspective of the switch. operating mechanism andframe; and

Fig.`4 is a side elevation showing the op eration' of the detents. Whilethe present switch mechanism may be" mounted in a containing easing ofany suitable type, l prefer to use that shown 1n l and i2, comprising aninverted cup4 shaped body 100i insuiation, the interiilr ofuhieh forms aswitch chei'nher 11 Within which the switch terminals and switchmechanism are mounted,4 In 'the construe-9 i tionshown1 thesWitoh. is ofthe-single pole 4type having but two switch terminals l2 and: 13 and asingle switch bar 14 adapted to 4make on break connection hetween theseterminals', although itis obvious that the' switchmay lie-converted intoa double pole `mechanisim.v by; the addition of similar Wire\terminalson theopposite side of the switch ohamber and a eoperatingswitch bar pro vided in the Inan'ner' Well understood by 'those skilledinthe art. The sWitoh-temninalsare carried by standards 15 yand 16having :1t-the upper ends outwardly Struck lugs iet-into recesses y inthe upper- .end walls 'ofthe body 10 end inwardly struck flanges .19 and20 tapped to receive the securing lscrews 1'7 and-18the ends of Which"pass down through apertures 'in thetop of the. inverted'cup-shapedindy-10:y These iianfgcs oaryvbind-ing-'Sorews il and 22 to which the nlliinzend branch Wires respectively may ho ES PATENT f OQFQIE.

`tively mounted.' "prises a 'web oi sheet lnetal pi'votod at 35 standard27.01? the f ame througlil-i'hich 33 and serve to hold the latteragainst thev and in the opposite"stalulard '2S o 4.the frame 25. Thepush huttoi'ls arethils guided secured. In order that. the lineman may'have ready ali-eeen to 'the 'binding screw ,he ton of the body if)apertared at 25:5 and in register with these fiaixgs 19 and il() at thepointat which. the. binding Sei-.eus are attached the-meto. t uili henoted that the flanges wand 20 underlie theie,` apertures and oioee theflatter against the en try'of dirt mortar, or the like into theewizzrsh. ziam'nberl The nl. mechanism is 1ra-rr xd bv a franie. :25-ol'lrprising a strip of sheet miete-l. beni-to U--shape und rigidlyVsel-:Tired tothe 6:3 i 1 3 i 1' screws 26. The de}end- Luigi;q nii-dauand are perforated. in register ol; J9 and $50 to receive the spindles;

and n2 if( peotiroly on which the rrfker her 33 and Switch har Yoke 3iare respeefe The rocker har com? on the spii'id'le 3l adjacent the innerace of the-astandard 2T and infosided 'with au oiiset tongue 36, whichengages between the' ends.

of the switeh spring Syin Well under-` stood manner. The web' of the.rocker '3331's provided with a ,siot 39 through which pas-ees theswitch Spindle thus limiting the ext-ent of oscillation of the rockeronits S0 pivot pin 1. Tangenfial Slots -ii and 511," thecontour of whichma)v befvariedi extend-v iT fr on ih'e opposite sides of the axis ofoseiii i in 35a receive the aetuating-lugs 42 and 4.5 reepectiieiy ofthe stems of the push huttous li and l5. rIn the forni here shown theseSteins are inu'ard'l5f"oi'set at (3 from the axis of theipush buttons 44mid l5 to bring the actuatinglugs 2 and i3 into ,regisier with theirguide slots li and 4S ifl the these 'lugs pass. Sl'ioulders lf) hearagainst the inner faceY of the nel) of, the rockerrbar inner face ofrthe anda'rd 2 ofthe Guide hllgs 5G and at the opposite A of the pushbutt-on stems enter guide, lots with a rectilinear motion on theactuation of the .switch so 'that the holes :il andvwff in the topoi th'insulating body lQ'Ina-'ibe made oi' onli* 'i ightljv 'greater diame hanherel c thestandards ofthe switch frame and the. bridge pleceofivhichlies .between the ends v of' the 4switcliyspriV 3 8 in'. Wellunderstood-manner. The yo (e'carries a pair. of

stop lugs 57 and- 58. i In the assembled'positioiuof the mechanismthe's'efstop lugs pro- `je ct toward the outer fecefofthe standard` 2iof the 'switch Aframeand 'are sopositioned that they engage one or the:other of the sto', lugs ,42 and, 43-.of the ush buttons'whic' projectVthrough the guide slots'l 47' and-*48 into the path s thereof.Consequently, upon the 'depression of onepf the pien buttons (and theconsequent oscillation'of the rocker bar. 33) the. switch bari isternpora'rily'-4 vcletained until Athe detainingstop lug 4Q or 43*passes the 'lug or 58 of 'thesivitch bar, whereupon.thezlatter. is freedand is snapped by the now tensonedswitch spring 38- 4into Onvyqro'vpsitom XVhi'le theime'chanism has l been illustrated with the-switch'bar-a-ndrocker bars mounted 4on' independentv spindles, will readilybennde'rstood thatgtheyj ma Vbe amounted upon, the same spindle" 'witontv4 materia-lx modification Aof* the construction. 'oropera.- tion-of'the 'mecha'nis'i'nd Similarly the lnan' A 'ner j off mo'untiil'gf theswitch terminals The potten-inem re, of the IJ-prefer toiseur thebottom'plate" 59 Permanently lifposition so, Vthat/fit cannot. be removedTand.. to Y'. this 'end :fthe ends of thev screws 61l a';re spreador"peened over above ignorantrmelicious'persQIiS cess toi the. switch'-Ghembuand `meer?enge of l'the al'ndheldf in' position .bymeans ofserews'vlwhich pass upw'throughtheends of the' and screw' into the "yokestraps -62'en1163`by m'eanf'f whichfthe body is mounted 'an' outlet bo'x 'of .1 ordinaryA typewai-midis 'omar-r6 Ilclaim as'l'ny s 1Inal-'i1'sh button switch, an insulating base,fa l'Js'haped switch"iframe *mounted 'thereon and comprising apairo opposed plates;havingftl1e re in 4 'registering- Vpairs ot 'y of each pan',-alrookeribar'pivoted; at said "fra Abearingfand com rising] a Webslotted; o 'n said'rockelf', a' pair oxsh buttons nonlinear-ly guided.in .me

. '-3. *In a'push buttons'witc-h,

la bearing ,between the slots.,A

said bearing, an" o'set.-

' 'ngagmg't a sliding'y engagement f the rod-eslots therein, a switchmember 1n said frame, a switch spring operatively engaging switchiiieliibeiand rocker bar, and a detent mecha.-

nism 'fortemporarily restraining the switch bar fioin movement duringthe initial movement of therocker bar,substantially as dea scribed.'

2. In a push button switch, an insulating' base, a U-shaped switch framemounted thereon and comprising a pair-of opposed plnte's having thereinregistering pairs of' guide slots and a bearing between the slots ofeach pain-a: rocker bar pivoted at saidv uided in the frame the rockerbar' through the 4bearing slots therein,- a switch member in said4frame', a'

bearing and comprising a'Web slotted on opr' posite sides of saidbearing, an offset spring-j' engagiugarm 'onsaidroekei-,a pair. of push.

-- but-tons .reetilinearly slots and having a sli ing engagementwith.

switch spring operatively engaging switch member 'and a. rocker bar, andcoperatingj detent. lugs onthe switch bar and' push butltons fortemporarily reStraining'the`1nove-'- -ment of4 ythesW-itch 'bar during:the initial movement' ofthe-rocker.

base, a [1 shaped s itch frfame mounte thereon and comprisinga pair ofopposed plates having. -thereinregistering pairs. of

guide slots and a bearing between the slots of Leach pair, a rocker''bar pivoted 4atfsai'd of push. buttons lreetiglinearly' guided in theframe slots and.- having afsliding engagemenUWith-'the rofeke'r-ba'r4through the bearingfsl'ots-' therein, shoulders' on said push buttons,bearing against the# face' said -ro'cke'rfbar andservlngto maint/ainthey-latter frame, 51a, 'switch 'spring operatively engagl'ingswitcli'memberand' rocker bar, and a detentfmeelanism 'fortemporarily restrain- In a. ush button switch, 'an-insulating bearing-'.'a'nd'hc'omprising a web slottedv on 'opposite' sides of` said`bearing, anoffset sprang'- engaging"arm on said rocker, a pair inproperpositioma switch member in said.

ing-the s wltch bar from movement 'during f the initial movement of therocker bar, Substantiallyas-'deserlbed o A guide slotsand a' bearingbetween the slots',

` of' each pair, a. roekeii-Lbarjcomprisin agwebv arrangedadjacen'qtli-finner facefo one oi said bearing andbeingslotted enopposite sides Y- thereof, a'`s wiftch= member plvoted' to Vthe fra-me'andjliaving'a .d'etent element 1y. ing-on the-outside of said one ofthe frame" plates, a' pair ,push buttons' 'hav-ingdugs heybea'ijng slotsin rocker andi passing thr' the rectilinearly guiding 'islots ill-'theo'tent ,element o the switch bar, `and-ji sw-1teh1 spring operativelyinterposed between the switch bar and rocker, substantially asdescribed. i

5. In a push button switch, a framehaving guide slots, a rocker barpivoted on said frame and 4having bearing slots, a switch bar pivoted onsaid frame and having stop means, in combination with push buttonshaving lugs rectilinearly guided in the frame slots, in slidingactuating engagement with the bearing slots in the rocker bar and'lyingin the path of the stop means on the switch bar in predeterminedpositions ot the switch. 4

6. In a push button switch, a frame haw ing a slotted standard, a rockerbar pivotally mounted on said standard adjacent one face thereof, aswitch bar pivotally mounted on said standard adjacent the opposite facethereof, and push buttons having lugs rectilineai'ly guided in saidstandard and having not only a sliding engagement with the rocker barbut also a detaining engagement with the switch bar.

7. In a push button switch, a frame having a slotted. standard, a rockerbar and a switch bar both pirotally mounted on said frame, in'combination with push buttons reetilinearly guided in said standard andhaving not only a sliding actuating engagement with said rocker but alsoa detaining engagement with the switch bar,for the purpose described.'

8. In a push button switch,v an inverted cup-shaped body of insulatingmaterial having switch terminals within the same, standards inelectrical connection with said ter# ininals and having their upper endsoffset to form binding screw terminals, the top. of said body beingapertured in register with the binding screw terlninui...to-permitaccess thereto, but being sealed at said apertures by the said offsetflanges against the entry of foreign substances into the'switch chamber,and means passing through the top of said body and engaging saidstandards to hold the latter in position. 4

9. In a push button switch, an inverted cup-shaped insulating body,binding. screw wire terminals incorners thereof, said tercup-shapedinsulating body, binding screwv wire terminals in 'corners thereof, saidterminals comprising standards within the switch chamber, lugs thereonextending out- `ward and let into recesses in the end walls of the bodyand flanges extending inwardly beneath the closed top of the bodyl andsen curing screws passing through said top into engagement with saidflanges, the top being apertured in register with the binding screws topermit access thereto for wiring the switch.

In ,testimony whereof I have signed my name to this specification, inthe presence of two subscribing Witnesses. U

i FREDERIC P. GATES.

IVitnes'ses:

HELEN M. SAUNDERS, A. L. HANSEN.

